- Mar 1 The March 1st, or Samil Movement, begins in Korea: it is a demonstration of resistance to Japanese occupation
- Mar 1 Future Hockey Hall of Fame center Newsy Lalonde sets a playoff record with 5 goals in the Canadiens' 6-3 win over Ottawa in NHL Championship Game 3 in Montreal
- Mar 2 1st congress of Communist International opens at the Kremlin
- Mar 3 1st international air mail service from US, Seattle-Victoria, BC
- Mar 3 Communist Party in Germany announces a general strike
- Mar 5 Louis Hirsch & Harold Atteridge's musical premieres in NYC
- Mar 6 NHL Championship: Montreal Canadiens beat Ottawa Senators, 3 games to 1 with 1 tie
- Mar 11 General strike in Germany crushed
- Mar 12 Austrian National Meeting affirms Anschluss (incorporate into Germany)
Theater Premiere
Mar 12 George Bernard Shaw's comedy play "Augustus Does His Bit" premieres in NYC
- Mar 15 American Legion forms (Paris)
Theater Premiere
Mar 16 Frank Wedekind's play "Elius Erweckung" premieres in Hamburg
Historic Publication
Mar 19 Literary Magazine "Littérature", edited by André Breton, Philippe Soupault, and Louis Aragon publishes its first issue
- Mar 23 Bashkir ASSR, in RSFSR, constituted
Historic Event
Mar 23 Benito Mussolini forms Fascist movement in Milan Italy
Historic Event
Mar 23 8th Congress of the Russian Communist Party re-establishes a five-member Politburo which becomes the center of political power in the Soviet Union. Original members Vladimir Lenin, Leon Trotsky, Joseph Stalin, Lev Kamenev and Nikolai Krestinsky
Conference of Interest
Mar 25 Woodrow Wilson's dream of a League of Nations becomes a reality after the League Covenant is adopted at the Paris Peace Conference